Chafing device for railway draft-gear.



Patented Mar. 2, 1915 H. E. BALL.

APPLICATION FILED MAR. 6, 1914,

GHAFING DEVICE FOR RAILWAY DRAFT GEAR.

`20 against the plate longitudinally. A bolt, il, passes throughcorresponding holes in the housing,

7, and in the wedge, 10, for holding the v same in position, and thewedge is provided with a plurality of holes for adjusting the sametransversely to'its diierent positions.- n order to automaticallymaintain the l bearing surfaces in close contact even in the case ofneglect to manually adjust the 1o Wedge, vthe chafing plate, 8, isprovided with a cavity,` 13, containing the Hat leaf spring, its reartace inclined to engage the wedge;a and its outer surface curved toengage the leaf springs when the same are drawn up to the compressedposition, as indicated in 'Fig 2. The springs thus act between thevspring block at the back and the lugs within the cavity ci the chaiingplate bearing opposite ends of said springs so that a certain amount oflost motion due to the Wear of the draw bar. or other parts will 'beautomatically taken upv by the expansion of the leaf spring and thesetting 25 forward of the chaling plate, 8, until the springs reachtheir straight position, as shown in Fig, Lt. The springs are of suiiincient strength to yieldingly holdy the 'cooperating curved surfaces inproper contact 3,0 with each other but are not intended to absorb thehailing stresses which are transmitted directly from the fixed chalingplate, 6, through the block, 9, and the movable chaiing plate, 8, to theWedge, 10, and housing, 7.

Having now described my invention, what l claim as new and desire tosecure by Letters -Patent is: "'lln a draft gear for railway vehicles,40 the combination` of a draw bar pivotally connected at its ends to.the respective vehicles, two chafing plates, each connected to the endof a vehicle, and having convex outer surfaces, an interposed floatingcliaing block vihaving double concave i'aces coperating 12, and thespring block, 14,*l1aving with tbe convex faces oli the adjoining chaiing plates, one of said chaing plates longitinlinallyo adjustable, andhaving cavity, and a spring located in said cavity'.

2. ln a draft gear for railway vehicle the combination of a draw barpivotaliy connected at its ends to the respective vehicles, two cliaingplates, each' connected. to the end of a vehicle, and having convei.youter surfaces, an interposed iioating chaiinlg block having` doubleconcave laces cooperating with the convex faces of the joining @balillaplates ones-.f sala Plates bolug longitudinally adjustable, and

having a cavity, and a spring block and 'leaf l springs located in saidcavity.

3. lln a the combination of a cbaing plate having an outer convexsurface, another chaing plate also having a convex surface, a iloatingcliaing block 'having surfaces interposed between said chaiing plates,one of said cliafing plates being ionand bearing against the wedge, .anda spring acting between said spring bloci and 'the adjustable cbaingplateo HElllillAN ll?. BLL;

Witnesses: v

HAL li. STAFFORD, HELEN l?. McDnvrr'r.

draft gear for railway vehicles,

double concave

